Insert for fixing or fastening purposes



FIG. 1 is a perspective view from above of an insert for fixing or fastening purposes.

FIG. 2 is a top view thereof

FIG. 3 is a cross section taken on the line 3--3 of FIG. 2, and

FIG. 4 is a bottom view thereof. 

The ornamental design for an insert for fixing or fastening purposes, as shown. 